Swing speed vs. Ball Speed

Earlier this year I was fitted to a new Titleist driver and was told I had a swing speed of 98-100, I would like to know what this converts to in ball speed (if possible)??  I am looking at the new 714 irons and your iron recommendations refer to Ball speed ?? This info would be helpful in understanding where I should start my fitting.

Thanks

Jeff M

Maximal "smash factor" is up to 1.5, so an on center hit will be between 145-150 based on your driver club head speed.